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Full-Text Articles in Social and Behavioral Sciences
Kinship Ties Across The Lifespan In Human Communities, Jeremy Koster, Dieter Lukas, David Nolin, Eleanor Power, Alexandra Alvergne, Ruth Mace, Cody T. Ross, Karen Kramer, Russell Graves, Mark Caudell, Shane Macfarlan, Eric Schniter, Robert Quinlan, Siobhan Mattison, Adam Reynolds, Chun Yi-Sim, Eric Massengill
Kinship Ties Across The Lifespan In Human Communities, Jeremy Koster, Dieter Lukas, David Nolin, Eleanor Power, Alexandra Alvergne, Ruth Mace, Cody T. Ross, Karen Kramer, Russell Graves, Mark Caudell, Shane Macfarlan, Eric Schniter, Robert Quinlan, Siobhan Mattison, Adam Reynolds, Chun Yi-Sim, Eric Massengill
ESI Publications
A hypothesis for the evolution of long post-reproductive lifespans in the human lineage involves asymmetries in relatedness between young immigrant females and the older females in their new groups. In these circumstances, inter-generational reproductive conflicts between younger and older females are predicted to resolve in favor of the younger females, who realize fewer inclusive fitness benefits from ceding reproduction to others. This conceptual model anticipates that immigrants to a community initially have few kin ties to others in the group, gradually showing greater relatedness to group members as they have descendants who remain with them in the group. We examine …
Ageism, Honesty, And Trust, Eric Schniter, Timothy W. Shields
Ageism, Honesty, And Trust, Eric Schniter, Timothy W. Shields
ESI Publications
Age-based discrimination is considered undesirable, yet we know little about age stereotypes and their effects on honesty and trust. To investigate this aspect of ageism, we presented older adults (over age 50) and younger adults (under age 25) with incentivized belief elicitation tasks about anticipated interaction behaviors and then a series of same, different, and unknown-aged group interactions in a strategic-communication game. All adults shared consensual stereotypes about uncooperative younger adults and cooperative older adults that demonstrated “wisdom of crowds”. While the out-group was consistently stereotyped as relatively different and more dishonest and suspicious than observed to be, the in-group …